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Former Member
Aug 14, 2015 at 12:18 AM

some questions about walk-through sample

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Hi guys,

Here is a sample from walk-through.

<mvc:View
controllerName="sap.ui.demo.wt.controller.App"
xmlns="sap.m"
xmlns:mvc="sap.ui.core.mvc"
displayBlock="true">
<App>
<pages>
<Page title="{i18n>homePageTitle}">
<content>
<Panel
headerText="{i18n>helloPanelTitle}">
<content>

<Button
text="{i18n>showHelloButtonText}"
press="onShowHello"/>
<Input
value="{/recipient/name}"
description="Hello {/recipient/name}"
valueLiveUpdate="true"
width="60%"/>
</content>
</Panel>
</content>
</Page>
</pages>
</App>
</mvc:View>


Now I have some questions.

1, I have removed the App tag but it causes a blank display, so what does this App mean?

2, I have noticed some tags begin with upper case and some are not. I think the ones with upper case are controls in UI5 and the other ones are HTML tags, am I right?

3, I found that the tags where can customizing CSS be used are all ones that begin with upper case, is it a rule?